block1.javascript

const fs = require('fs');
const express = require('express');
const app = express();

app.use(express.urlencoded({ extended: true }));
app.use(express.json());
app.use(express.static('public'));

const states = {
  waiting: 0,
  getUsername: 1,
  getEmail: 2,
  getAddress: 3,
  confirmPayment: 4
};

// CONFIGURE DATABASE

// APP CODE

const listener = app.listen(process.env.PORT, () => {
  console.log("Your app is listening on port " + listener.address().port);
});